Specifications - QSC ISA 300T User Manual

SPECIFICATIONS

OUTPUT POWER in watts
FTC:
8 ohms per channel (20-20k Hz., 0.1% THD)
4 ohms per channel (20-20k Hz., 0.1% THD)
EIA: 16 ohms (1 kHz., 0.1% THD, 1 channel driven)
8 ohms (1 kHz, 0.1% THD, 1 channel driven)
4 ohms (1 kHz, 0.1% THD, 1 channel driven)
2 ohms (1 kHz, 1% THD, both channels driven)
Bridged Mono:
16 ohms, 20–20k Hz, 0.1% THD
8 ohms (1 kHz, 0.1% THD)
4 ohms (1 kHz, 1% THD)
DYNAMIC HEADROOM (all models)
DISTORTION (SMPTE-IM, all models)
FREQUENCY RESPONSE (all models)
(at 10 dB below rated output power)
DAMPING FACTOR (all models)
SIGNAL to NOISE (unweighted, 20-20k Hz.)
VOLTAGE GAIN (gain control set to 0 dB)
INPUT SENSITIVITY for rated power into 8 ohms
INPUT CLIPPING, Vrms (all models)
INPUT IMPEDANCE (all models)
ISA 280
185
280
100
200
300
430
370
600
830
2 dB at 4 ohms
LESS THAN 0.01%
20 Hz to 20 kHz, +0, -1 dB
-3 dB points: 5 Hz and 50 kHz
Greater than >200 for 8 ohm load
-100 dB
30.5 dB (33.4.X)
+3.43 dBu (1.15 Vrms)
+22 dBu
10k ohms unbalanced , 20k ohms balanced
ISA 450
260
425
140
280
500
700
520
900
1400
LESS THAN 0.01%
-100 dB
33.0 dB (44.7 X)
+2.81 dBu (1.07 Vrms)
ISA 750
450
650
250
475
750
1200
900
1500
2400
LESS THAN 0.01%
-100 dB
35.0 dB (56.2 X)
+2.81 dBu (1.07 Vrms)
35